JP2013539592A5 - - Google Patents

Claims (15)

A glass container enclosing the light generating means;
A stepwise absorption coating applied to the surface of the glass container in the axial direction and / or circumferential direction;
The stepwise absorbent coating is
A front lamp for an automobile showing a smooth transition in a transition region from a first coated region on the glass container to a second coated region on the glass container.   The lamp according to claim 1, wherein the first covered area and the second covered area are different in layer thickness and / or particle density and / or number of layers and / or color. .   The graded absorption coating has a thickness in the range of 200 nm to 500 nm in the first coating region and a thickness in the range of 500 nm to 1000 nm in the second coating region. The lamp described. The first coated region has a lower particle density absorbent coating than the second coated region;
4. The lamp according to claim 1, wherein the second coating region has an absorption coating with a higher particle density than the first coating region. 5.   The lamp according to any one of claims 1 to 4, wherein the number of layers in the first covering region is smaller than the number of layers in the second covering region.   The lamp according to any one of claims 1 to 5, wherein the refractive index of the first covering region and the refractive index of the second covering region differ by at most 0.2.   7. A lamp as claimed in any one of the preceding claims, wherein the graded absorbent coating comprises a single layer of absorbent material. The first covering region is provided in the vicinity of the light generating means of the lamp;
The lamp according to any one of claims 1 to 7, wherein the second covering region is applied to an outer region of the glass facilitator.   9. The graded absorption coating material according to any one of the preceding claims, wherein the graded absorption coating material is selected to increase the color temperature of the lamp by at least 100K compared to the uncoated condition of the lamp. The lamp described.   The lamp according to any one of claims 1 to 9, wherein the stepwise absorption coating covers substantially the entire surface of the glass container. A lamp according to any one of claims 1 to 10,
A reflector assembly for collecting and shaping any light passing through the stepped absorbing coating of the lamp. The lamp comprises an H7 lamp comprising a light generating means having a filament;
The stepwise absorbent coating is such that the first coated area is applied to the filament area and the second coated area is applied to the outer area of the glass area below the filament. 12. The illumination assembly of claim 11, wherein the illumination assembly is applied over the entire surface of the glass container of the lamp. A method of manufacturing a front lamp for an automobile having a glass container enclosing a light generating means,
The graded absorbent coating is applied to the glass container in the axial direction and / or circumferential direction so that the graded absorbent coating exhibits a smooth transition in the transition region from the first coated region to the second coated region. Applying to the surface. Applying said stepwise absorbent coating in the axial direction and / or circumferential direction;
Immersing the glass container in a coating solution bath;
Partially lifting the glass container from the coating solution bath at a first lifting speed;
Fully removing the glass container from the coating solution tank at a second pulling speed;
The method of claim 13, wherein the first lifting speed is gradually adjusted until the second lifting speed is reached. Applying said stepwise absorbent coating in the axial direction and / or circumferential direction;
Applying a coating to substantially the entire surface of the container;
15. A method according to claim 13 or 14, comprising removing a portion of the coating in the region so that a thin layer of the absorbent coating remains in the region corresponding to the first coated region.